A major meta-analysis published earlier this year that questioned the empirical evidence for supervised drug consumption sites has been retracted by the International Journal of Drug Policy. But the meta-analysis, which I reported on shortly after it published, concluded that supervised consumption sites have a small favorable relation to drug-related crimes, but no significant effect on several other outcomes, like overdose mortality and syringe sharing. In short, the meta-analysis didn’t conclude that supervised consumption sites were bad, but they didn’t appear to do much on key outcomes like overdose death. But the meta-analysis apparently had serious methodological flaws in how it evaluated outcomes.